3 files changed, 10 insertions, 0 deletions
diff --git a/indra/llprimitive/llmaterial.h b/indra/llprimitive/llmaterial.h
index 42e3dd04b9..da364e548c 100644
--- a/indra/llprimitive/llmaterial.h
+++ b/indra/llprimitive/llmaterial.h
@@ -27,6 +27,8 @@
 #ifndef LL_LLMATERIAL_H
 #define LL_LLMATERIAL_H
 
+#include <boost/shared_ptr.hpp>
+
 #include "llmaterialid.h"
 #include "llsd.h"
 #include "v4coloru.h"
@@ -94,4 +96,6 @@ protected:
 	U8			mAlphaMaskCutoff;
 };
 
+typedef boost::shared_ptr<LLMaterial> LLMaterialPtr;
+
 #endif // LL_LLMATERIAL_H
diff --git a/indra/llprimitive/llmaterialid.cpp b/indra/llprimitive/llmaterialid.cpp
index 73a61f9c54..bbbbf0ced3 100644
--- a/indra/llprimitive/llmaterialid.cpp
+++ b/indra/llprimitive/llmaterialid.cpp
@@ -77,6 +77,11 @@ LLMaterialID& LLMaterialID::operator = (const LLMaterialID& pOtherMaterialID)
 	return (*this);
 }
 
+bool LLMaterialID::operator < (const LLMaterialID& pOtherMaterialID) const
+{
+	return (compareToOtherMaterialID(pOtherMaterialID) < 0);
+}
+
 bool LLMaterialID::isNull() const
 {
 	return (compareToOtherMaterialID(LLMaterialID::null) == 0);
diff --git a/indra/llprimitive/llmaterialid.h b/indra/llprimitive/llmaterialid.h
index a474703f79..ffefc9f11c 100644
--- a/indra/llprimitive/llmaterialid.h
+++ b/indra/llprimitive/llmaterialid.h
@@ -42,6 +42,7 @@ public:
 	bool          operator == (const LLMaterialID& pOtherMaterialID) const;
 	bool          operator != (const LLMaterialID& pOtherMaterialID) const;
 	LLMaterialID& operator = (const LLMaterialID& pOtherMaterialID);
+	bool          operator < (const LLMaterialID& pOtherMaterialID) const;
 
 	bool          isNull() const;